It’s not a whole lot different than being at a craft fair.

Don’t just show up and hang out, bring something tangible to the event.

Help others out, chat it up with fellow craftspeople, ie people that are making stuff.

Give them suggestions, offer to help with your particular skills. There are so many talented people here with varied skills and specialties.

Meet them in real life, too, if possible. Nostr isn’t a secret society and you don’t need to be a millionaire to be welcomed at a meetup.